OpenVPN blocked? Why it happens and what actually works
How networks detect and block OpenVPN, the fixes worth trying in order, and what to do when no OpenVPN trick gets through.
· 3 min read
Censorship & stealth
Why networks block VPNs, how they detect them, and the protocols that get through anyway.
Related: Stealth VPN →
What is deep packet inspection? How networks detect VPNs
DPI in plain language, the escalating ways firewalls detect VPN traffic, from port blocks to TLS fingerprinting and active probing, and what gets through each one.
· 3 min read